Peter Hintz is a Professor of mathematics at Penn State University in College Park, PA. He was formerly at ETH, Zurich. His research focuses on partial differential equations arising in general relativity. Much of his work is concerned with stability problems for solutions of the Einstein field equations and with the global asymptotic control (regularity, decay) of solutions to related linear and nonlinear wave equations. Methods and ideas from microlocal analysis and spectral/scattering theory feature prominently in his research.